In the process of high-speed PCB design, relying solely on personal experience for wiring often has huge limitations. Using Cadence's Allegro software package to simulate the circuit at the PCB level ...
I have a 60G hard disk and need to check the available space after the program is running. I use ioctl(fp,FIOFREE,&tmp), but it seems to be wrong. What type should the variable tmp be defined as? Plea...
[align=left][color=rgb(62, 62, 62)]People often show their communication ability when they talk to each other, but what about people and objects? [/color][/align][align=left][color=rgb(62, 62, 62)] [/...
[align=left][color=rgb(34, 34, 34)][font="]Analysis of the Principle of Rectifier and Filter Circuit[/font][/color][/align][align=left][color=rgb(34, 34, 34)][font="]The rectifier and filter circuit i...
[size=6][color=#00ff00] [/color][/size] [b][size=6][color=#00ff00]If you really want to learn something, tell it or teach it. [/color][/size][/b]-------Bruce Trump There are many ways to tell and teac...
[i=s]This post was last edited by sonicfirr on 2022-4-19 20:21[/i]I am still getting familiar with Linux . I just realized that Linux has neither native GUI nor application layer protocol stack. So to...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
Introduction
my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
1. Basic principles of organic/polymer solar cells
The basic principle of organic/polymer solar cells is to use the photovoltaic effect generated by light incident on the heterojunction of sem...[Details]
At present, products in the field of monitoring generally focus on the field level, that is, the client/server (C/S) model is adopted, the purpose of which is to ensure the stability and reliability o...[Details]
Background
The proliferation of ultra-low-power wireless sensor nodes for measurement and control purposes, combined with new energy harvesting techniques, has made it possible to create ful...[Details]
1. Explanation of some common English abbreviations in ARM
MSB: most significant bit;
LSB: least significant bit;
AHB: Advanced High-Performance Bus;
VPB: VLSI peripheral bus th...[Details]
PCB Design
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